diff --git a/modules/announcement/_annc_widget15.html.erb b/modules/announcement/_annc_widget15.html.erb
index f6ab3de..01c1a98 100644
--- a/modules/announcement/_annc_widget15.html.erb
+++ b/modules/announcement/_annc_widget15.html.erb
@@ -128,7 +128,7 @@
 			num=1;
 		}
 	var flag=false;
-	$('.btn-left').click(function(){
+	$('[data-subpart-id=\"{{subpart-id}}\"] .btn-left').click(function(){
 		if(!flag){
 			var uls = $('[data-subpart-id=\"{{subpart-id}}\"] ul.w-annc__list:not(.hidden_item)').toArray();
 			var ul_length = uls.length;
@@ -147,7 +147,7 @@
 			$('[data-subpart-id=\"{{subpart-id}}\"] ul.w-annc__list.active').eq(0).effect("slide", { direction: "left", mode: 'show', duration: 500},function(){$("body").css("overflow-x","");flag=false;});
 		};
 	});
-	$('.btn-right').click(function(){
+	$('[data-subpart-id=\"{{subpart-id}}\"] .btn-right').click(function(){
 		var lilength = $('[data-subpart-id=\"{{subpart-id}}\"] li.w-annc__item').length;
 		if(!flag){
 			var uls = $('[data-subpart-id=\"{{subpart-id}}\"] ul.w-annc__list:not(.hidden_item)').toArray();